Wheel-brake for gun-carriages.



No. 770,178. PATENTED SEP1. 13, 1904.

O. LAUBER & N. KOCH. WHEEL BRAKE FOR GUN CARRIAGES.

APPLICATION FILED MAY 15. 1903. no MODEL. 1 a SHEETS-SHEET 1.

N0 MODEL.-

No. 770,178. PATENTED SEPT. 13, 1904.

0. LAUBBR & N. KOCH.

WHEEL BRAKE FOR GUN OARRIAGES.

APPLICATION FILED MAY15, 190s.

B A If P N 5 N s snnms snm 2.

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: 6 [V N E g E P, E H 62 J In 11 HM K m T (5 d KM' No. 770,178. PATENTED SEPT. 13, 1904. 0. LAUBER & N. KOCH.

WHEEL BRAKE FOR GUN OARRIAGES.

APPLICATION FILED MAY 15. 1903.

N0 MODEL. SSHEETS-SHBET a.

NIITED stares Patented September 13. 1904.

ASSIGNORS TO FRIED. KRUPP, OF ESSEN-GN-THE-RUHR, GERMANY.

WHEEL-BRAKE oaeuN-cnRRmeEs. i

SPECTFICATION. formingpart of Letters Patent No. 770,178, dated September13, 1904. Application filed May 15, 1903. Serial No. 157 ,295. mt modal.)

To all whom, it may concern:

ists as a Lemoine brake.

The present invention relates to wheel-tire,

brakes of the type which is known to artillerdescribed on pages 135 to 14:1 and Plate VII, Figs. 1 to 4, of the work of Georg Kaiser, entitled .Konstru/rzion (1 01 iKrieg-s Fu/wwerlre, published at Vienna in 1895. In this brake bands are passedfroin the arms which carry the brake-shoes over drums which are secured to the naves of the wheels to springs which for the purpose of applying the brakes may or thelike.

. the bands, which normally pass-loosely around the drums, are likewise tightened, so that they be put under tension by means of a hand-lever By putting tension on the springs lie snugly to the drum-surfaces. If when the parts are thus adjusted the gun runs back after a shot, the bands wind upon the drums in such a manner that the brake-arms are moved toward the wheel andthe brake-shoes firmly pressed against the wheel-tire. In returning the gun to battery the brake is au' tomatically released by the unwinding of the bands upon the drums.

The Lemoine brakes heretofore known are subject to the disadvantage that the springs. employed require much space, not only because they must be bent to put them under tension, but also because the entire springs in thus bending change their position. These objections are avoided, according to themesby way of illustration in the accompanying ment of the invention, together with" those I ent invention, by introducing a torsional spring between the controlling device of the.

brake and the brake-band. I

One embodiment of this invention .18 shown drawings, in which the brake isshown in use upon a gunbarriage with a drop or bent axle,

in which drawings-.-"

Figure 1 is a side elevation of this embodi- Such a brake is parts of the gun-carriage which come under consideration. Fig. 2 1s a plan. view of onehalf of the carriage shown in Fig. 1. 7' Fig. 3

is a front elevation of the carriage. Fig. 4 is a section on the line a i Fig, 1, looking from the left. Fig. 5 is a detail view of a portion shown in Fig. 3 on an enlarged scale. Fig. 6 is a section on the line 6 6, Fig. 5, looking from the right. Fig. 7 is a front view ofanother embodiment of the invention,- several parts being shown in section. Fig. 8 shows a part of Fig. 7 on an enlarged scale. Fig. 9 is a section on the line 9 9, Fig. 8, looking from the right; and Fig. 10 is a section on the line 10 10, Fig. 8, looking from the right.

As already stated, the presentwheel-tire brake differs from Lemoine :brakes heretofore known principally in that it has introduced between the controlling device of the brake and the brake-bands a torsion-spring instead of a bending spring. This torsionspring is suitably arranged in the hollow of the intermediate part E of the drop-axle E E in order to obtain a compact arrangement.

In, the form illustrated in Figs. 1 to 6 the torsion-spring is shown as a wound or coiled spring and consists of two parts G G of equal length and opposite winding, Figs. 3 and 5.

The inner endsof these spring parts engage in openings in a sleeveH. Inth'e same manner the outer ends of these spring partsare in connection with ringsf Nonerotatably secured to the outer surfaceof the, sleeve H is one end of a tube D, which surrounds the spring portion G. Thetube 'D-is rotatably mounted in a flange e arrangedon'one face.

of the axle part E, which flange is interrupted at two diametrically opposite points bysegmental recesses 6, Figs 5 and 6. Keyed to the end of the tubeD, projecting beyond the axle part'EQis a setting-leverB, the nave t of which, together with two segmental pro.- jections 0?, provided on the outer faced the tube D, lying on the inner side of the flange e secures the tube D against axial movement.

The interrupted flangee -of the axial part F4 and the projections d of the tube D consti- 'tute together a bayonet-joint which renders litpossible tobring the tube Dinto the axial part E, Figs. 5 and 6.

carrles in a well-known manner a spring-op- The setting-lever B erated pawl bi, which stands in engagement with a toothed rack C, screwed concentricallywith the axle part E upon one of the carriage-cheeks. A. The tooth-faces of the rack (J are so inclined that they prevent, through the engaging pawl b the swinging of the setting-lever B toward the muzzle of the gunbarrel. In the axle part E within the spring portions G G is arranged a shaft F, whose ends project beyond the axle part E'and arei journaled in arms K, which are mounted upon the shanks E of the wheel-axle. The shaftF is guided loosely through the sleeve H and is centered, by means of its guideringsf'f on the one side in the tube D and on the other side in a flap e of the axle part E. connected with the ends of the shaft F upon the outer sides of the arms K are levers M,

ing a is in the form of a box and carries a.

coiled spring S, which encompasses the-bolt a One end of this spring engages the end of the fork-arm g of the brake-arm Q, while its other end stands inconnection with a shoulder a of the bolt (f. The bolt a is secured against turning by a projection a, Fig. l, on the shoulder a, which projection enters a re cess in the box (1*. The spring S has initial tension and is so wound that it tends to throw the brake-shoes R away fromthe wheel-tires.

In describing the manipulation and mode of operation it isassumed that the brake is to be moved from the position (not shown in the drawings) which the several parts assume when the brake is released. In this position the setting-lever B is in such position that its pawl 6 engages in the outermost notch of the toothed rack toward the muzzle of the gun-barrel. The spring parts G and G are relaxed. the brake-bands lie loosely about the drums B, and the brake-shoes are held away from the peripheries of the Wheels .by the springs S.

In order to apply the brake,"the setting le ver B is thrown toward the trail of the gun. Themovement of the setting-lever is trans- -mitt'ed through the tube D to the sleeve H and from the sleeve H through the spring parts G lr to the rings f f which cause a turning of the shaft F and the levers M. The

latter turn at this time in the same direction Rigidly parts G G and laying the brake-bands tightly.

on the drums P, when the brakewill be applied. If new the gun runs back on firing,

the bands will so wind upon the drums that the brake-arms Q under the' tension of the springs S are moved toward the wheels and the brake-shoes will be pressed against the wheel-rims.

' 'IBy running the gun out to battery again the brake-bands unwind from the drums P,-

so that the brake-shoes R are removed from the wheel-rims by the springs S.

In order to take off the brake, the settinglever B, after releasing the pawl 6 is thrown toward the muzzle of the gun, so that the parts return to their-starting positions.

The embodiment shown in Figs. 7 to 10 of the drawings differs from that above described only in that thetorsion-springs Gr 6" are replaced by a plate-spring T and the shaft F is omitted. The sleeve H in this embodiment is provided with a stay it, on which the plate-spring T is riveted. The ends of the spring T are formed with trunnions, which are rotatable in the bearings K and carry on their free ends the levers M.

. Having thus described the invention, the.

, means, of a torsional spring, a rotatable sleeve or tube surrounding the spring and connected therewith, and means adapted to be operated torotate the sleeve or tube to set the spring.

2. In a brake for wheeled gun-carriages,'tl1e combination with the brake, and the winding means,'of a torsional spring, and a lever connected at one end to the spring. and at the other end to the winding means to cause a turning of the springs.

3. In a brake for wheeled guncarriages,the

combination with the brake,-and the Winding.

means, of a hollow axle extendingtransversely ofthe carriage, a torsional'spring tion of the brake, the means for setting the same, a winding drum and band for applying the brake, a torsion-spring interposed ho- Q mud ixtendiu t'n. me sub gun-ca r the set-tingmeans, 1, POKUOD of S316.

mge whesi-iju'ake the aster biesc'ri bad 211-9 combination of the Win-523mg Czwn' s; and bands "T1153 toward. 6 Wk 9613, hit, cor-meshed with the H extending from the :1 c-oriwn oi the hormonal ronneu'teil WM; an intermeneck-ed. W2

ppm wrolecti 11g f wmdmg tube extending i1; 01'' the aide amt siona-i sprim sh: die point (if me la?" nected with dor'f, Germany, this 29th day 92* A OTTO LAY;-

in presence of- PETER LHJBER. WILLIAM Essmz'w ms. 

